Iowa water and wastewater capital improvement plans
385 planned projects · $990M · 17 cities · 17 plans
The 17 capital improvement plans and adopted budgets Klarifi has extracted for Iowa list 385 water, sewer and wastewater line items with a combined planning budget of $990M across 17 cities. Sioux City has the largest plan at $260M. Each city page lists its largest projects with budgets and years, links the source document and the city's treatment plants.
A capital improvement plan (CIP) is a city’s multi-year budget for building and replacing infrastructure. The water, sewer and wastewater sections list each project with its budget and the years it is funded, which makes them the earliest public signal that a plant, pump station or pipe network is about to be upgraded, usually two to four years before a contract is awarded.
Cities in Iowa with water and sewer capital plans
| # | City | Line items | Budget | Plans |
|---|---|---|---|---|
| 1 | Sioux City | 28 | $260M | 1 |
| 2 | Cedar Falls | 14 | $133M | 1 |
| 3 | Storm Lake | 55 | $132M | 1 |
| 4 | Dubuque | 69 | $119M | 1 |
| 5 | Davenport | 17 | $81M | 1 |
| 6 | Council Bluffs | 29 | $68M | 1 |
| 7 | Burlington | 27 | $46M | 1 |
| 8 | Des Moines | 5 | $41M | 1 |
| 9 | Boone | 23 | $33M | 1 |
| 10 | Nevada | 12 | $19M | 1 |
| 11 | Fairfield | 22 | $17M | 1 |
| 12 | Muscatine | 9 | $17M | 1 |
| 13 | North Liberty | 29 | $10M | 1 |
| 14 | Oelwein | 19 | $9M | 1 |
| 15 | West Liberty | 8 | $2M | 1 |
| 16 | Independence | 15 | $1M | 1 |
| 17 | Keokuk | 4 | $570K | 1 |
Planned spend by start year
Before 2026
$208M
63 items
2026
$338M
157 items
2027
$243M
77 items
2028
$145M
37 items
2029
$26M
29 items
2030
$31M
22 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 130 | $292M | 29% |
| Sewer | 116 | $312M | 32% |
| Water Supply | 72 | $332M | 34% |
| Water Distribution | 67 | $54M | 5% |
Project types in Iowa
The largest planned projects in Iowa
| # | Project | City | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | WWTP Facility Plan Improvements | Sioux City, IA | Wastewater treatment plant upgrades | $170M | 2027–2028 |
| 2 | Nutrient Reduction Improvements | Cedar Falls, IA | Nutrient removal | $126M | 2024–2029 |
| 3 | Water Plant Expansion Design | Storm Lake, IA | Wastewater treatment plant upgrades | $103M | 2028–2030 |
| 4 | WPCP | Digester Rehabilitation Project | Davenport, IA | Anaerobic digesters and biogas | $27M | 2026–2028 |
| 5 | Sanitary Sewer Lining and Repairs | Des Moines, IA | Sewer rehabilitation and I&I | $27M | 2025–2029 |
| 6 | Catfish Creek Sewershed Interceptor Sewer Improvements - Middle Fork | Dubuque, IA | Force mains and interceptors | $24M | 2026–2029 |
| 7 | Sewer Rehabilitation Program | Davenport, IA | Sewer rehabilitation and I&I | $17M | 2026–2031 |
| 8 | South Basin Sewer Separation | Burlington, IA | Sewer rehabilitation and I&I | $16M | 2026–2030 |
| 9 | Catfish Creek Sewershed Interceptor Sewer Improvements - South Fork | Dubuque, IA | Force mains and interceptors | $14M | 2026–2028 |
| 10 | Water Plant Expansion | Nevada, IA | Wastewater treatment plant upgrades | $13M | 2026–2027 |
All 385 Iowa line items in Klarifi
Every project with its description, page reference and source document, filterable by city, department, type, budget and year, linked to the plants and decision-makers in each city.
Iowa capital plan questions
Sources and methodology
Budgets and years are as published in each city’s capital improvement plan or adopted budget. Klarifi extracts the water, sewer and wastewater line items from the published document, keeps the page reference for each one, and assigns a project type from the title and description with a keyword classifier. Figures are planning budgets, not awarded contracts, and can change when a plan is re-adopted.
Data refreshed September 11, 2026.